Shima System Co., Ltd.
2Patents
0Active
2Granted
23Portfolio score
Filing activity: Jul 31, 2001 → Jul 19, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7162048B2 | Structure around a speaker unit and applied electric or electronic apparatus thereof | Electricity | 22 | Expired |
| US6904157B2 | Structure around a speaker unit and applied electric or electronic apparatus thereof | Electricity | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.